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Why the precast girders are used instead of reinforced cement concrete girders?
becos precast girders are not cast in -site and therefore faster. they also available in standard size.
How is precast concrete produced?
unlike standard concrete which is in a liquid form and poured were it is needed and formed, precast concrete is molded offsite into the form that is required and then shipped to the site where it will be set into place.
What is precast concrete?
precast concrete manufactring the members of construction out site - using concret material-
What is the Difference between precast and prefabricated concrete?
Prefabricated is a general term for anything that is assembled in a factory rather than on-site. Precast would be specifically applicable to anything that could be formed in a mold (concrete, perhaps glass, metal, etc.).
What is precast concrete panel?
A precast concrete panel is: A panel, tile, counter, Fin, wall etc that is usually poured in a controlled manufacturing facility (although it can be poured on site) into a mold of a specific shape. Whether it is mass produced or a custom shape the precast panel is usually finished (sealed) before installation (although, again this also can be done on site). There are 2 ways to istall concrete products: Pour on site or precast and install. There are many pros and cons for each process. Which method to use depends on what the customer/architect/designer/engineer is trying to accomplish.
Are you on this site because you're bored?
Yeah.
Bored out of your mind?
Yes. Why do you think I am on this site?
When choosing a house what is more safe hollow blocks or precast?
How safe do you want it? I'm guessing by hollow blocks you are referring to Besser blocks. They are safe and if used correctly in the construction of the house will be fine. However, in England i believe it's extremely hard (if not impossible) to get a mortgage on a property built with them. Precast is a modern form of construction similar to in-situ properties era's long gone :). In-situ being the reference to the fact the walls were formed on site or in place. Precast is formed off site to the specifications of the build and put together on site - hence the name - precast. As for which is strongest... Precast is solid concrete and Besser block is hollow concrete. The house i live in now (to my suprise) is made from Besser block. It looks like a normal solid or double brick home from the front and if i tap the inside of a wall it feels solid to the touch (unlike a brick veneer home) but it gives off a hollow sound. If by safe you mean strong then i'd want precast as it's usually made from reinforced concrete.
Are people that are bored take this site seriously?
Yup.... lol
Why does the Buena Vista site look like a pile of dirt and rocks?
Buena Vista site looks like a pile of dirt and rocks is because of when archaeologists use to have to dig for the bones to look for another things .
Is GFRC the same thing as precast?
NO.GFRC stands for glass fiber reinforced concrete. Precast is concrete (typically reinforced with steel) poured at a factory (rather than cast at the job site)For GFRC information see http:/www.strombergarchitectural.com/materials/gfrc for gfrc guidebooks, technical information etc.
What are Advantage and disadvantage of In-situ concrete slab?
disadvantage: - require more time to construct compare to precast concrete slab -more on-site labor required - require formwork advantage: -most commonly use -do not require storage for material (e.g. precast concrete slab need place to store)
